314 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 90 



TACUBAYA, D. F. (OBS. CENTRAL), MEXICO 



Lat. 19° 24' N. Long. 99° 12' W. H = 2309 m 



PRESSURE AT STATION LEVEL: COR. TO 0° C. (32° F.) AND TO 



GRAV. AT 45° LAT * 



Means of i (7* + 14* + 21"), 105th meridian W. 



500 mm + 



M'ns 81.8 81.4 80.9 81.1 81.1 80.9 82.3 82.3 81.2 81.5 82.3 81.9 81. 



TEMPERATURE IN DEGREES C. 

 Means of 24 hours 



M'ns 11.6 13.3 15.9 16.8 17.4 16.5 15.4 15.5 15.4 14.4 12.9 12.0 



14.8 



TOTAL PRECIPITATION IN MILLIMETERS 



A correction of — 1.2 mm was applied for gravity. 



